Finding the Fourth Proportional to 31,079.16, 42,889.68 and 16,932.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,079.16 : 42,889.68 = 16,932.24 : x
2. Step 2: Convert to fraction form
   31,079.16/42,889.68 = 16,932.24/x
3. Step 3: Cross multiply
   31,079.16x = 42,889.68 × 16,932.24
4. Step 4: Simplify right side
   31,079.16x = 726,218,355.28
5. Step 5: Solve for x
   x = 726,218,355.28/31,079.16
6. Step 6: Final answer
   x = 23,366.73